I'm trying to reconcile this with the documentation - the Solidity Features page says this"Structs can be passed around as function arguments, be returned from functions and created in memory."

But the Solidity Tutorial says this:"conversions between these data locations are performed automatically by the compiler. Sometimes, this is still not possible, i.e. mappings cannot reside in memory (as their size is unknown)".

So should the Solidity Features page be updated to say "Structs can be passed as function arguments, but only if they don't contain mappings"? Apologies if I have the wrong end of the stick.

Comments

The features wiki is only meant as a short changelog and does not always describe all edge-cases of a change. The tutorial is the official documentation / reference, also because previous entries into the features page are not updated if they are altered at a later time.